Cayman's DNA/RNA Oxidative Damage (Clone 7E6.9) ELISA Kit is a competitive assay that can be used to measure both 8-hydroxy-2'-deoxyguanosine and 8-hydroxyguanosine. This kit has been validated for use in urine, but other sample types may be used. The assay has a range from 0.15-20 ng/ml and a sensitivity (80% B/B0) of approximately 0.45 ng/ml.